Amp gain adjustment
Thread Starter
Burning Brakes
Joined: Feb 2001
Posts: 929
Likes: 5
From: Marietta GA
Amp gain adjustment
I am almost finshed with my install of two amplifiers one front and one rear in my '68. What is the procedure for adjusting the gain on each of the amps? One is a Kenwood and one is a US Acoustics. Thanks for any replies.
Pro
Joined: Mar 2001
Posts: 745
Likes: 0
From: Elkridge MD
Re: Amp gain adjustment (BB68Vett)
http://totoro.efiregate.net/HTMLPage...ainSetting.htm
:cheers: :seeya
:cheers: :seeya
Thread Starter
Burning Brakes
Joined: Feb 2001
Posts: 929
Likes: 5
From: Marietta GA
Re: Amp gain adjustment (BB68Vett)
MVP, I checked out the recommended website, thanks for the tip. I don't have a CD player that the test tones from the website would require, but it seems the method is to turn the Headunit volume up to 75% and the amp gains down. Then play a representative piece of music that you would listen to and turn the gain up until it just starts clipping and then back off until it stops clipping.
Do I have it right?
[Modified by BB68Vett, 11:11 AM 10/11/2002]
Do I have it right?
[Modified by BB68Vett, 11:11 AM 10/11/2002]
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
Re: Amp gain adjustment (BB68Vett)
No..
you listen to various songs with various levels of clipping
clipping will be audible distortion past a certain point
He will explain this is a song with no clipping, hence no "extra free power"(sic) and play it
then one with 3db, 6db, etc.
Once you've picked which song, with the highest amount of clipping, that you CAN NOT HEAR, remember the song number.
Then go onto the second cd
there will be test tones, play the corresponding test tone to the song and slowly bring your gains up until the tone sounds different, then bak them down a little
it's all in the instructions, I suggest you read them twi ce.
anjd BE CAREFUL
If you want to set them by ear, take like a Korn CD with a ripping bass track, and lots of crap around 50-300hz, and play it at 3/4 volume
slowly turn gains up till yuou start hearing distortion, then back it down.
[Modified by Kale, 10:13 AM 10/11/2002]
you listen to various songs with various levels of clipping
clipping will be audible distortion past a certain point
He will explain this is a song with no clipping, hence no "extra free power"(sic) and play it
then one with 3db, 6db, etc.
Once you've picked which song, with the highest amount of clipping, that you CAN NOT HEAR, remember the song number.
Then go onto the second cd
there will be test tones, play the corresponding test tone to the song and slowly bring your gains up until the tone sounds different, then bak them down a little
it's all in the instructions, I suggest you read them twi ce.
anjd BE CAREFUL
If you want to set them by ear, take like a Korn CD with a ripping bass track, and lots of crap around 50-300hz, and play it at 3/4 volume
slowly turn gains up till yuou start hearing distortion, then back it down.
[Modified by Kale, 10:13 AM 10/11/2002]
Thread Starter
Burning Brakes
Joined: Feb 2001
Posts: 929
Likes: 5
From: Marietta GA
Re: Amp gain adjustment (Kale)
I will be setting the amps by ear since I don't have a CD player and I really don't want to go through the hassle of re-wiring my speakers to induce more resistance as the website suggests. Thanks everybody for the replies.
Team Owner
Joined: Apr 2002
Posts: 28,747
Likes: 41
From: Frankenstein never scared me. Marsupials do, because they're fassst…and they DART, THAT'S crazy!
St. Jude Donor '03 thru '26
Re: Amp gain adjustment (BB68Vett)
MVP, I checked out the recommended website, thanks for the tip. I don't have a CD player that the test tones from the website would require, but it seems the method is to turn the Headunit volume up to 75% and the amp gains down. Then play a representative piece of music that you would listen to and turn the gain up until it just starts clipping and then back off until it stops clipping.
Do I have it right?
Do I have it right?
Good luck.
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